菱奇LZC8660 LZC8710 LZC811C

标题：供应菱奇LZC8660 LZC8710 LZC811C 隔离非隔离 调光 大小功率方案

美国菱奇 LED系列隔离类 LZC811C 功率120W LZC8660 120 非隔离系列 LZC8710 100W

General Description
The LZC811C is a single-power stage,
isolated and primary side offline LED lighting
regulator which achieves high power factor.
The proprietary real-current control method
can control the LED current accurately from
the primary side information. It can
significantly simplify the LED lighting system
design by eliminating the secondary side
feedback components and the opto-coupler.
The LZC811C integrates active power factor
correction and works in Quasi Resonance
mode (QRM) in order to reduce the
MOSFET switching losses. With a building in
700V start-up MOSFET, IC can eliminate the
power loss caused by start-up resistors to
provide a high efficiency solution for lighting
applications. The external programmable
line voltage compensation provides a more
precise output current throughout the
universal AC input voltage range. The
leading edge blanking circuit0n the CS/FB
input removes the signal glitch and results in
reduced external components and system
cost. The multi-protection features of
LZC811C greatly enhance the system
reliability and safety. The LZC811C features
VDD and output over voltage protection;
output short circuit protection, cycle-by-cycle
current limit and secondary peak current
protection0n CS pin, VDD UVLO and
auto-restart and over-temperature protection.
The driver output voltage is clamped at 18V
to protect the external power MOSFET.
Features
· Single stage PFC
· Primary side regulation without
Secondary Feedback
· Quasi Resonance (QR) mode with
Fly-back topology
· Real-Current control to meet accurate
output current
· Very less components
· Programmable input AC voltage
compensation
· Leading Edge Blanking0n CS/FB pin
· Protection Features
Ø Building in hysteresis OTP
Ø VDD over voltage protection
Ø Cycle by cycle current limiting0n CS
pin
Ø Secondary peak current protection
on CS pin
Ø Output short to GND protection
Ø Output programmable over voltage
protection
Ø FB and CS pins default protection